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Cover Picture: Pathway of Oxygen Incorporation from O 2 in TiO 2 Photocatalytic Hydroxylation of Aromatics: Oxygen Isotope Labeling Studies (Chem. Eur. J. 7/2012)
Author(s) -
Li Yue,
Wen Bo,
Yu Cailan,
Chen Chuncheng,
Ji Hongwei,
Ma Wanhong,
Zhao Jincai
Publication year - 2012
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201290021
Subject(s) - bimetallic strip , catalysis , hydroxylation , reactivity (psychology) , photocatalysis , chemistry , singlet oxygen , photochemistry , acceptor , materials science , oxygen , organic chemistry , physics , medicine , alternative medicine , pathology , enzyme , condensed matter physics
The photocatalytic hydroxylation of aromatic compounds has been investigated by an 18 O‐labeling method. The results show that the reduction of O 2 by conduction‐band electrons is indispensable for the O 2 incorporation. The formed intermediate H 2 O 2 plays an essential role in the O 2 incorporation process. The . OH generated from the reduction of H 2 O 2 is the final active species that introduces the O 2 ‐derived O atoms into the hydroxylated product. For more details see the Full Paper by C. Chen et al. on page 2030 ff.